Orchard heater



6 G. A. R. LEWINGTON ET AL ORCHARD HEATER Filed Nov] 27, 1926 15 1 N VEN TORS.

GUY AR. LE WINGTON GEORGE A.$M/TH A TTORNE Y:

' to the battle.

Patented Sept. 6, 1927. V

UNITED" STATES GUY A. R. LEWINGTON A1\TD GEORGE A. SMITH, 0]? LOS ANGELES, CALIFORNIA.

oncnann HEATER.

Application filed November 27, 1926. Serial Hog 151,049.

This invention relates to orchard heaters.

This application contains the same subject matter as United States application Serial No. 85,152, filed February 1, 1926, for orchard heater, by Guy A. R. Lewington, one of the joint inventors'herein.

' The general object of the invention is to provide an improved orchard heater which will burn a low grade of oil'efficiently and without producing smoke.

One of the specific objects of the invention is to provide an improved stack for use for orchard heaters wherein the stack is provided with means enabling complete combustion.

Another object of the invention is to provide a combined orchard heater and chimney or stack wherein novel'means is provided for supplying air to the stack at different points throughout its length.

Another object of the invention is to provide an improved stack for orchard heaters wherein this stack is provided with an in terior bafile and withan air vent adjacent An additional object of the invention is to provide an improved draft device for orchard heaters.

A further object of the'invention is to provide an improved rain shield for orchard heaters.

Other objects of the invention will be apparent from the following description taken in connection with the acompanying' drawings, wherein Fig. l is a central sectional view of an orchard heater embodying the features'of' our invention.

Fig. 2 is a transverse section on line 22 of Fig. 1.

Fig. 3 isa fragmentary elevation of the chimney or stack with the outer 'fiue removed. V

Fig. 4 is a top plan view.

Fig. 5 is a central sectional view of a modified form of draft regulator.

Fig. 6 is a sectional view showing a modified arrangement of baflle. i

Fig. 7 is an elevation of a modified form of stack, and I I v Fig.8 is a view similar to Fig.6 showing a modification.

Referring to the drawing by reference characters, we. have shown an o'rchard 5 heater generally at 10. This heater coin prises a bottom portion 11 having a flange sides of the orchard heater. 7

12 thereon. The heater is provided with a removable cover 14 which has a flange 15 secured thereto. The top of the cover preferably slopes downwardly'toward the edges and is provided with a depending draft producing and flame confining device 16. This device is preferably made from a sin gle piece of metal bent to the shape shown 111 Fig. 2. The device includes a substan- I 1,641,549 PATENT OFFICE.

tially cylindrical draft portion 17 at one end and an enlarged flame confining portion the other end. This construction provides a chamber lt) which at all times extends above the fluid level inthe draft regulating device and confines the gas generatmg flames within this chamber. Suitable apertures 20 at the bottom of the device allow oil to flow into the chamber. 1

A draft portion 17 is extended as at 2 through the cover and the ends are bent over as at- 22. These. bent overportions22 are arranged on a washer 23 so that moisture' may not enter through the portion 17.

A pivoted closure member 2a is mounted over the aperture in the member 17 and this pivotedclosure member may be moved to regulate the draft.- I

In Fig. 5 we show a slight modification-of the draftproducing' and regulating device 16 wherein the regulating portion comprises a separately formed member 25, which is slipped into the cylindricalportion 17 when the heater, is being assembled. b

' v {The cover 1 1 is provided with a central aperture 26 and witha flange 27 surrounding this aperture. -Secured to this flange which is provided with an upwardly extendshield and directs water into the channel in the member 28 whence it passes through apertures 28- on the cover and on to e show a stack at S.- This stackfis shown as arranged upon the outer wall 30 I. '4

of the channel member 28.'--The stack as well as the orchard heater is preferably made of a suitable weight of metal orother material. The stack is provided adjacent the bottom thereof with a plurality of holes 30' which are arranged circumferentiall and which allow entrance' 'of air whic mingles with the unburned vap'or passing through the opening 26. f 5

Intermediatethelength of the stack we provide a baliie 81. Thisbafile is preferably "we show an annular channel'member 28 l the in tight engagement with the interior wall of the stack and is inclined with respect to the axis of the stack as shown in Fig. 1.

One edge of the baffle is removed as at 32 to provide a passageway for the mixed unburned gases and air. Adjacent this passsageway and preferably slightly above the same we provide an air vent 33 which may In front of the opening 33 we arrange an 7 outer flue member 33 which has a lower The member 33, provides a drum draft Immediately fabove the air opening 33, we arrange rows which is quite desirable.

of apertures 3 and above these apertures 34 We arrange smaller apertures 35.. .The

particular size and arrangement of the apertures 3d and 35 maybe varied without departing from' the spirit of our invention. The aperture 3:2 is arranged above thewater shield'29 so thatmoisture will not pass into the receptacle.

In Fig. .6 we show a modification of our invention wherein the baffle is shown at 38 assubstantially horizontal. This baffle 38 is slightly below the bottom of the opening 33 previously described.

, In Fig. 7 we show stack having an upper portion 40 of reduced diameter for purpose of controlling the burning of vapors.

'In Fig. 8 the outer flue member 33? is made by bending the material from the opening 33 as shown. I 7

With our invention the droplets of liquid fuel in the vapor passing through the stack are cracked or broken down while pass ing through the stack. The baflle 31 becomes very hot and acts as a .hot plate thus cracking theparticles and giving a completely combustible product which burns without smoke.

What we claim is; p

1. A smudge pot comprising a receptacle,

said receptacle having a cover removably.

mounted thereon, said cover having an opening therein, said cover having a draft regulating device associated therewith, said receptacle having a flame confining member arranged therein, said member being closed on all sides and having the top portion thereof arranged to communicate with the opening in said cover. I 2. An orchard heater comprising a receptacle having an apertured cover thereon, and a flame confining device arranged within said receptacle, said device including an air admitting portion in communication with the aperture in said cover and a flame confining portion closed 011 all sides and arranged adjacent the aperture in said cover. 3. An orchard heater comprising a re ceptacle, said receptacle having a cover removably fitted thereon, said cover having a flanged aperture therein, an annular ring secured to saidflange, said ring having a water shield thereon, a stack mounted on said receptacle'and engaging said ring, said cover having an air opening therein.

. 4. An orchard heater comprising a receptacle, a cover for said receptacle, said cover having an aperture therein, a stackmounted on said cover adjacent said'aperture, and water deflecting means extending over said aperture, said water deflecting means being arranged withinsaid stack.

5. An orchard heater comprising a receptacle having a flanged cover thereon, an annular ring engaging the flange on said cover, said annular ring having an upwardly directed cavity therein, a stack secured to the outer portion of said annular ring anda Water shield secured to the inner portion of said annular ring, said water shield extending partly over said aperture, said stack having a baflie therein, said baffle having an aperture therein arranged over said water shield;

6. In an orchard heater, a receptacle'tor oil, a cover for said receptacle, said cover having an air venttherein and having'a discharge opening, a stack mounted on said cover, said stack having a" plurality of air admitting apertures near the bottom there-' of and having a baffle intermediate its length, said baflle having an aperture thereon adjacent one edge thereof, the remainderof said ballie being in tight engagement with the wall of said stack and means to admit air to the stack from above the baffle, said means comprising a semicylindrb vcal aperture 1n the wall of said stack, said aperture being located a slight ,CllSiJELHCP.

above the bottom of said baffle,-said' baffle being inclined and said stack having a plurality of small apertures arranged, above He plate therein, the Wall of said stack having a hole therein, said hole being adjacent to the baffle, and an outer flue forming member arranged adjacent to the hole in said stack. i

8. In an orchard heater, a receptacle for oil, a cover for said receptacle, said cover having an air vent therein and having a discharge opening, a stack mounted on said cover, said stack having a plurality of air admitting apertures near the bottom thereof, and having an apertured bafile intermediate its length, said baflle having an aperture thereon adjacent one edge thereof,

the remainder of said baffle being in tight engagement with the wall of said stack, said stack having an aperture therein adjacent to said baffle, an outer flue plate engaging said stack adjacent to the aperture therein, said plate forming a down draft. In testimony whereof, We hereunto affix our signatures.

GUY A. R. LEWVINGTON.

GEORGE A. SMITH. 

